MicroPython Forum (Archive)

from time import sleep_ms, ticks_ms from machine import I2C, Pin from esp8266_i2c_lcd import I2cLcd i2c = I2C(scl=Pin(5), sda=Pin(4), freq=400000) lcd = I2cLcd(i2c, 0x27, 2, 16) lcd.putstr("Hello ernitron\nIt's working!") lcd.clear() lcd.putstr("Using dhylands\npython_lcd") lcd = I2cLcd(i2c, 0x27, ...

kevinkk525 wrote: ↑

Sat Jun 08, 2019 2:27 pm

I guess self._pr isn't defined. you can replace it with 2
self._offs should be 0

Thank you Kevin for your help.

Thank you Kevin. i will check and get back to you. Hi Kevin, Now i can see the distance in cm. But, first it is display's error in rounding value. why is it happening? try: dt = round(dt, self._pr) dt += self._off except Exception as e: print("error", "Error rounding value {!s}".format(dt)) return ...

async def _read(self) -> float: """ Returns distance in cm. Optionally compensated by temperature in °C. :return: float """ try: dt = round(dt, self._pr) dt += self._off except Exception as e: print("error", "Error rounding value {!s}".format(dt)) return dt return dt Thank you Kevin. i will check a...

As the comment in the code says it outputs meters. You can use my library for comparison (you have to remove project specific imports and base class first though): https://github.com/kevinkk525/pysmartnode/blob/master/pysmartnode/components/sensors/hcsr04.py Thank you for sharing the details Kevin....

Hi, here is my module with calibration feature: https://github.com/Euter2/MicroPython/blob/master/ultrasonic.py Correct one. Connect distance sensor HC-SR04 to NodeMcu ESP8266 V3. Hi, After uploading ultrasonic.py on to ESP8266 .I used below code and output generate as shown below. was the output d...

Assuming you have the LED working as per the advice of @jimmo, you need something like The RTC on the ESP8266 is notoriously inaccurate. You might want to use similar logic to call settime() once at (say) 4:00. Thank you for sharing the details pythoncoder. i will try and get back to you if i face ...

t = time.localtime() t = t[0:3] + (0,) + (t[3] + TIMEZONE_OFFSET,) + t[4:6] + (0,) print("{}-{:02d}-{:02d} {:02d}:{:02d}:{:02d}".format(t[0], t[1], t[2], t[3],t[4],t[5]) Creates this output: 2019-05-20 14:56:03 (YYYY-MM-DD HH:mm:SS) Hi, i am trying to switch on LED every day for one hour and below ...

Frida wrote: ↑

Thu May 23, 2019 5:33 pm

You have to put "a=pir.value()" inside the while loop.
It has to ask the pin in every loop

Thank you it's working as expected.

Hi, i m trying with PIR sensor and below is the code in main.py, when i run the code on esp8266 board i am getting as below screens and each time i need to reset the button to detect the motion. can someone suggest me where i do wrong. main.py pin=Pin(2,Pin.OUT) pir=Pin(14,Pin.IN,Pin.PULL_UP) a=pir....